Home / 11,439.70-17,171.82-10,131.56

Finding the Fourth Proportional to 11,439.70, 17,171.82 and 10,131.56

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Solution

The fourth proportional to 11,439.70, 17,171.82 and 10,131.56 is: 15,208.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.70 : 17,171.82 = 10,131.56 : x
  2. Step 2: Convert to fraction form
    11,439.70/17,171.82 = 10,131.56/x
  3. Step 3: Cross multiply
    11,439.70x = 17,171.82 × 10,131.56
  4. Step 4: Simplify right side
    11,439.70x = 173,977,324.64
  5. Step 5: Solve for x
    x = 173,977,324.64/11,439.70
  6. Step 6: Final answer
    x = 15,208.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.